Neptune Replacement DOS Head Cap Air Pumps Product type: biological filtration media

Product type: biological filtration media

Removes chlorine and chloramine while detoxifying ammonia

Attach the HMS rail to the arms and level the rail before adding lights

Fill a clean test tube with 5 ml of aquarium water or to the line on the tube

Neptune Replacement DOS Head Cap Air Pumps Product type: biological filtration mediaNeptune Replacement DOS Head Cap Neptune Replacement DOS Head Cap is a replacement head cap for the Neptune DOS dosing system, sold individually for servicing one DOS pump head. Replacement Cap for Neptune DOS This part is used when the head cap on a Neptune DOS dosing pump is worn, damaged, missing, or needs to be replaced during service. It helps restore the pump head assembly without replacing the entire DOS unit. Head Cap Features Replacement head